package com.itbaizhan.openhis.config.shiro;

import com.itbaizhan.openhis.domain.User;
import com.itbaizhan.openhis.service.UserService;
import com.itbaizhan.openhis.vo.ActiverUser;
import org.apache.shiro.authc.AuthenticationException;
import org.apache.shiro.authc.AuthenticationInfo;
import org.apache.shiro.authc.AuthenticationToken;
import org.apache.shiro.authc.SimpleAuthenticationInfo;
import org.apache.shiro.authz.AuthorizationInfo;
import org.apache.shiro.authz.SimpleAuthorizationInfo;
import org.apache.shiro.realm.AuthorizingRealm;
import org.apache.shiro.subject.PrincipalCollection;
import org.apache.shiro.util.ByteSource;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Lazy;

/**
 * @Author:
 * 自定义realm去匹配用户名和密码
 */
public class UserRealm extends AuthorizingRealm {
	
	
	@Autowired
	@Lazy
	private UserService userService;
	
	
	@Override
	public String getName() {
		return this.getClass().getSimpleName();
	}
	
	/**
	 * 做认证  --就是登陆
	 * @param token
	 * @return
	 * @throws AuthenticationException
	 */
	@Override
	protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {
		//得到用户登陆名
		String phone=token.getPrincipal().toString();
		//根据电话查询用户是否存在
		
		
		User user = userService.queryUserByPhone(phone);
		//User user = new User();
		
		if(null!=user){//说明用户存在，但是密码可能不正确
			//组装存放到reids里面的对象
			ActiverUser activerUser=new ActiverUser();
			activerUser.setUser(user);
			//匹配密码
			SimpleAuthenticationInfo info=new SimpleAuthenticationInfo(
					activerUser,user.getPassword(), ByteSource.Util.bytes(user.getSalt()),this.getName());
			return info;
		}else{
			return null;//代表用户不存在
		}
	}
	
	/**
	 * 做授权  --登陆成功之后判断用户是否有某个菜单或按钮的权限
	 * @param principals
	 * @return
	 */
	@Override
	protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals) {
		ActiverUser activerUser= (ActiverUser) principals.getPrimaryPrincipal();//身份得到的就是上一个方法的返回值的值 第一个参数activerUser
		SimpleAuthorizationInfo info=new SimpleAuthorizationInfo();
		return info;
	}
}
